How much does an x402 facilitator cost?

Base facilitation (verifying a payment proof and settling USDC on-chain) is free or near-free across the market in 2026: Coinbase CDP charges $0, AsterPay charges $0 forever, Dexter charges roughly 0.1-0.5%. The meaningful fees sit in the value layer above facilitation: fiat settlement to a bank account, trust screening and compliance. AsterPay charges 0.5% + €0.10 only when EUR reaches the merchant's bank.

Why is x402 facilitation free?

Verifying an EIP-3009 signature and broadcasting a settlement transaction has near-zero marginal cost, so competition pushed the price to zero — Coinbase CDP set the precedent. Facilitators make money on what sits above: off-ramps to fiat, trust and compliance layers, premium APIs, and enterprise features.

What does AsterPay charge?

x402/MPP verification and on-chain USDC settlement: $0 forever, no API key. EUR settlement to bank: 0.5% + €0.10 per settled transaction on the EU rail (1.5% + €1.00 on the US rail). Premium API endpoints: $0.001-$0.10 per call. The KYA trust-score endpoint is free with no authentication.

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x402 facilitator fees compared (2026)

Updated 15 July 2026 · 5 minute read · By Petteri, Co-founder

Short answer Base facilitation — verifying an x402 payment proof and settling USDC on-chain — is free or near-free everywhere in 2026. Coinbase CDP set the precedent at $0; AsterPay matches it at $0 forever; Dexter charges roughly 0.1–0.5%. The fees that actually matter sit one layer up: getting fiat into a bank account, screening the paying agent, and compliance. That is where facilitators differ, and where you should compare.

The fee table

Facilitator	Facilitation fee (verify + on-chain settle)	Fiat settlement	What you actually pay for
Coinbase CDP	$0	None — USDC stays on-chain	Nothing at facilitator level; off-ramp yourself (e.g. Coinbase exchange fees)
AsterPay	$0 forever, no API key	EUR via SEPA Instant: 0.5% + €0.10 (EU rail); 1.5% + €1.00 (US rail)	EUR in your bank <10 s, per-call KYA + sanctions screening, MiCA-aligned path
Dexter	~0.1–0.5%	None — stablecoins on-chain	Highest-volume infrastructure, Solana-native, agent-to-agent routing
PayAI	Varies by flow	None published	Crypto-native agent payment flows
Stripe (preview)	Not public	Stripe balance → payout (US preview only)	Stripe ecosystem integration — when it ships in your region

Sources: public pricing pages and tracked facilitator data (Signal402), July 2026. Negotiated enterprise terms may differ.

How to read this table

1. Facilitation is a commodity — treat $0 as the baseline

Verifying an EIP-3009 signature and broadcasting a transfer costs the facilitator close to nothing, so competition drove the price to zero. If a facilitator charges a percentage just to verify and settle on-chain, you are paying for their distribution, not their work. AsterPay's position is explicit: facilitation is free forever, with no API key and no volume tiers, and revenue comes from the value layer only.

2. The real comparison is the value layer

Ask what happens after the USDC settles on-chain. If the answer is “nothing, that's your problem” — the facilitator is free but your finance team inherits an off-ramp project: exchange accounts, FX spreads, accounting for crypto on the balance sheet, and a compliance story to write. A 0% facilitation fee plus a DIY off-ramp typically costs an EU merchant more, in fees and hours, than 0.5% + €0.10 for euros arriving automatically.

3. Screening is either in the payment path or it isn't

None of the free crypto-native facilitators screen the paying agent. For many workloads that's fine. For an EU business taking real revenue from autonomous buyers, an unscreened inflow of anonymous stablecoins is a problem you eventually answer for. AsterPay runs KYA trust scoring and Chainalysis sanctions screening on every payment before settlement — that cost is inside the 0.5%, not an add-on.

Worked example: 10,000 agent payments of $0.50

Stack	Facilitation	Getting EUR to bank	Total cost
CDP + DIY off-ramp	$0	Exchange fees ~0.5–1% + FX spread + your hours	~€30–60 + finance-team time
Dexter (stay on-chain)	~$5–25	Not solved — USDC remains on-chain	$5–25 and no euros yet
AsterPay EU rail	$0	0.5% + €0.10 per settled payout batch	~€25 + €0.10/payout, euros in bank, screening included

Illustrative — assumes daily batched payouts; exact numbers depend on batching and volumes.

Bottom line

Don't compare facilitation fees — they're all at or near zero and heading there permanently. Compare what it costs to get from “agent paid USDC” to “clean euros in my bank account with a compliance story”. On that comparison, published prices in 2026 put AsterPay's EU rail at 0.5% + €0.10 all-in, screening included.